SDL_render_sw.c
Go to the documentation of this file.
/*
Simple DirectMedia Layer
Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if !SDL_RENDER_DISABLED
#include "../SDL_sysrender.h"
#include "SDL_render_sw_c.h"
#include "SDL_hints.h"
#include "SDL_assert.h"
#include "SDL_draw.h"
#include "SDL_blendfillrect.h"
#include "SDL_blendline.h"
#include "SDL_blendpoint.h"
#include "SDL_drawline.h"
#include "SDL_drawpoint.h"
#include "SDL_rotate.h"
/* SDL surface based renderer implementation */
typedef struct
{
const SDL_Rect *viewport;
const SDL_Rect *cliprect;
SDL_bool surface_cliprect_dirty;
} SW_DrawStateCache;
typedef struct
{
SDL_Surface *surface;
SDL_Surface *window;
} SW_RenderData;
static SDL_Surface *
SW_ActivateRenderer(SDL_Renderer * renderer)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
if (!data->surface) {
data->surface = data->window;
}
if (!data->surface) {
SDL_Surface *surface = SDL_GetWindowSurface(renderer->window);
if (surface) {
data->surface = data->window = surface;
}
}
return data->surface;
}
static void
SW_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED) {
data->surface = NULL;
data->window = NULL;
}
}
static int
SW_GetOutputSize(SDL_Renderer * renderer, int *w, int *h)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
if (data->surface) {
if (w) {
*w = data->surface->w;
}
if (h) {
*h = data->surface->h;
}
return 0;
}
if (renderer->window) {
SDL_GetWindowSize(renderer->window, w, h);
return 0;
}
SDL_SetError("Software renderer doesn't have an output surface");
return -1;
}
static int
SW_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
int bpp;
Uint32 Rmask, Gmask, Bmask, Amask;
if (!SDL_PixelFormatEnumToMasks
(texture->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
return SDL_SetError("Unknown texture format");
}
texture->driverdata =
SDL_CreateRGBSurface(0, texture->w, texture->h, bpp, Rmask, Gmask,
Bmask, Amask);
SDL_SetSurfaceColorMod(texture->driverdata, texture->r, texture->g,
texture->b);
SDL_SetSurfaceAlphaMod(texture->driverdata, texture->a);
SDL_SetSurfaceBlendMode(texture->driverdata, texture->blendMode);
/* Only RLE encode textures without an alpha channel since the RLE coder
* discards the color values of pixels with an alpha value of zero.
*/
if (texture->access == SDL_TEXTUREACCESS_STATIC && !Amask) {
SDL_SetSurfaceRLE(texture->driverdata, 1);
}
if (!texture->driverdata) {
return -1;
}
return 0;
}
static int
SW_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
{
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
Uint8 *src, *dst;
int row;
size_t length;
if(SDL_MUSTLOCK(surface))
SDL_LockSurface(surface);
src = (Uint8 *) pixels;
dst = (Uint8 *) surface->pixels +
rect->y * surface->pitch +
rect->x * surface->format->BytesPerPixel;
length = rect->w * surface->format->BytesPerPixel;
for (row = 0; row < rect->h; ++row) {
SDL_memcpy(dst, src, length);
src += pitch;
dst += surface->pitch;
}
if(SDL_MUSTLOCK(surface))
SDL_UnlockSurface(surface);
return 0;
}
static int
SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, void **pixels, int *pitch)
{
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
*pixels =
(void *) ((Uint8 *) surface->pixels + rect->y * surface->pitch +
rect->x * surface->format->BytesPerPixel);
*pitch = surface->pitch;
return 0;
}
static void
SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
}
static int
SW_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
if (texture) {
data->surface = (SDL_Surface *) texture->driverdata;
} else {
data->surface = data->window;
}
return 0;
}
static int
SW_QueueSetViewport(SDL_Renderer * renderer, SDL_RenderCommand *cmd)
{
return 0; /* nothing to do in this backend. */
}
static int
SW_QueueDrawPoints(SDL_Renderer * renderer, SDL_RenderCommand *cmd, const SDL_FPoint * points, int count)
{
SDL_Point *verts = (SDL_Point *) SDL_AllocateRenderVertices(renderer, count * sizeof (SDL_Point), 0, &cmd->data.draw.first);
int i;
if (!verts) {
return -1;
}
cmd->data.draw.count = count;
if (renderer->viewport.x || renderer->viewport.y) {
const int x = renderer->viewport.x;
const int y = renderer->viewport.y;
for (i = 0; i < count; i++, verts++, points++) {
verts->x = (int)(x + points->x);
verts->y = (int)(y + points->y);
}
} else {
for (i = 0; i < count; i++, verts++, points++) {
verts->x = (int)points->x;
verts->y = (int)points->y;
}
}
return 0;
}
static int
SW_QueueFillRects(SDL_Renderer * renderer, SDL_RenderCommand *cmd, const SDL_FRect * rects, int count)
{
SDL_Rect *verts = (SDL_Rect *) SDL_AllocateRenderVertices(renderer, count * sizeof (SDL_Rect), 0, &cmd->data.draw.first);
int i;
if (!verts) {
return -1;
}
cmd->data.draw.count = count;
if (renderer->viewport.x || renderer->viewport.y) {
const int x = renderer->viewport.x;
const int y = renderer->viewport.y;
for (i = 0; i < count; i++, verts++, rects++) {
verts->x = (int)(x + rects->x);
verts->y = (int)(y + rects->y);
verts->w = SDL_max((int)rects->w, 1);
verts->h = SDL_max((int)rects->h, 1);
}
} else {
for (i = 0; i < count; i++, verts++, rects++) {
verts->x = (int)rects->x;
verts->y = (int)rects->y;
verts->w = SDL_max((int)rects->w, 1);
verts->h = SDL_max((int)rects->h, 1);
}
}
return 0;
}
static int
SW_QueueCopy(SDL_Renderer * renderer, SDL_RenderCommand *cmd, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_FRect * dstrect)
{
SDL_Rect *verts = (SDL_Rect *) SDL_AllocateRenderVertices(renderer, 2 * sizeof (SDL_Rect), 0, &cmd->data.draw.first);
if (!verts) {
return -1;
}
cmd->data.draw.count = 1;
SDL_memcpy(verts, srcrect, sizeof (SDL_Rect));
verts++;
if (renderer->viewport.x || renderer->viewport.y) {
verts->x = (int)(renderer->viewport.x + dstrect->x);
verts->y = (int)(renderer->viewport.y + dstrect->y);
} else {
verts->x = (int)dstrect->x;
verts->y = (int)dstrect->y;
}
verts->w = (int)dstrect->w;
verts->h = (int)dstrect->h;
return 0;
}
typedef struct CopyExData
{
SDL_Rect srcrect;
SDL_Rect dstrect;
double angle;
SDL_FPoint center;
SDL_RendererFlip flip;
} CopyExData;
static int
SW_QueueCopyEx(SDL_Renderer * renderer, SDL_RenderCommand *cmd, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_FRect * dstrect,
const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
{
CopyExData *verts = (CopyExData *) SDL_AllocateRenderVertices(renderer, sizeof (CopyExData), 0, &cmd->data.draw.first);
if (!verts) {
return -1;
}
cmd->data.draw.count = 1;
SDL_memcpy(&verts->srcrect, srcrect, sizeof (SDL_Rect));
if (renderer->viewport.x || renderer->viewport.y) {
verts->dstrect.x = (int)(renderer->viewport.x + dstrect->x);
verts->dstrect.y = (int)(renderer->viewport.y + dstrect->y);
} else {
verts->dstrect.x = (int)dstrect->x;
verts->dstrect.y = (int)dstrect->y;
}
verts->dstrect.w = (int)dstrect->w;
verts->dstrect.h = (int)dstrect->h;
verts->angle = angle;
SDL_memcpy(&verts->center, center, sizeof (SDL_FPoint));
verts->flip = flip;
return 0;
}
static int
SW_RenderCopyEx(SDL_Renderer * renderer, SDL_Surface *surface, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * final_rect,
const double angle, const SDL_FPoint * center, const SDL_RendererFlip flip)
{
SDL_Surface *src = (SDL_Surface *) texture->driverdata;
SDL_Rect tmp_rect;
SDL_Surface *src_clone, *src_rotated, *src_scaled;
SDL_Surface *mask = NULL, *mask_rotated = NULL;
int retval = 0, dstwidth, dstheight, abscenterx, abscentery;
double cangle, sangle, px, py, p1x, p1y, p2x, p2y, p3x, p3y, p4x, p4y;
SDL_BlendMode blendmode;
Uint8 alphaMod, rMod, gMod, bMod;
int applyModulation = SDL_FALSE;
int blitRequired = SDL_FALSE;
int isOpaque = SDL_FALSE;
if (!surface) {
return -1;
}
tmp_rect.x = 0;
tmp_rect.y = 0;
tmp_rect.w = final_rect->w;
tmp_rect.h = final_rect->h;
/* It is possible to encounter an RLE encoded surface here and locking it is
* necessary because this code is going to access the pixel buffer directly.
*/
if (SDL_MUSTLOCK(src)) {
SDL_LockSurface(src);
}
/* Clone the source surface but use its pixel buffer directly.
* The original source surface must be treated as read-only.
*/
src_clone = SDL_CreateRGBSurfaceFrom(src->pixels, src->w, src->h, src->format->BitsPerPixel, src->pitch,
src->format->Rmask, src->format->Gmask,
src->format->Bmask, src->format->Amask);
if (src_clone == NULL) {
if (SDL_MUSTLOCK(src)) {
SDL_UnlockSurface(src);
}
return -1;
}
SDL_GetSurfaceBlendMode(src, &blendmode);
SDL_GetSurfaceAlphaMod(src, &alphaMod);
SDL_GetSurfaceColorMod(src, &rMod, &gMod, &bMod);
/* SDLgfx_rotateSurface only accepts 32-bit surfaces with a 8888 layout. Everything else has to be converted. */
if (src->format->BitsPerPixel != 32 || SDL_PIXELLAYOUT(src->format->format) != SDL_PACKEDLAYOUT_8888 || !src->format->Amask) {
blitRequired = SDL_TRUE;
}
/* If scaling and cropping is necessary, it has to be taken care of before the rotation. */
if (!(srcrect->w == final_rect->w && srcrect->h == final_rect->h && srcrect->x == 0 && srcrect->y == 0)) {
blitRequired = SDL_TRUE;
}
/* srcrect is not selecting the whole src surface, so cropping is needed */
if (!(srcrect->w == src->w && srcrect->h == src->h && srcrect->x == 0 && srcrect->y == 0)) {
blitRequired = SDL_TRUE;
}
/* The color and alpha modulation has to be applied before the rotation when using the NONE and MOD blend modes. */
if ((blendmode == SDL_BLENDMODE_NONE || blendmode == SDL_BLENDMODE_MOD) && (alphaMod & rMod & gMod & bMod) != 255) {
applyModulation = SDL_TRUE;
SDL_SetSurfaceAlphaMod(src_clone, alphaMod);
SDL_SetSurfaceColorMod(src_clone, rMod, gMod, bMod);
}
/* Opaque surfaces are much easier to handle with the NONE blend mode. */
if (blendmode == SDL_BLENDMODE_NONE && !src->format->Amask && alphaMod == 255) {
isOpaque = SDL_TRUE;
}
/* The NONE blend mode requires a mask for non-opaque surfaces. This mask will be used
* to clear the pixels in the destination surface. The other steps are explained below.
*/
if (blendmode == SDL_BLENDMODE_NONE && !isOpaque) {
mask = SDL_CreateRGBSurface(0, final_rect->w, final_rect->h, 32,
0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
if (mask == NULL) {
retval = -1;
} else {
SDL_SetSurfaceBlendMode(mask, SDL_BLENDMODE_MOD);
}
}
/* Create a new surface should there be a format mismatch or if scaling, cropping,
* or modulation is required. It's possible to use the source surface directly otherwise.
*/
if (!retval && (blitRequired || applyModulation)) {
SDL_Rect scale_rect = tmp_rect;
src_scaled = SDL_CreateRGBSurface(0, final_rect->w, final_rect->h, 32,
0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
if (src_scaled == NULL) {
retval = -1;
} else {
SDL_SetSurfaceBlendMode(src_clone, SDL_BLENDMODE_NONE);
retval = SDL_BlitScaled(src_clone, srcrect, src_scaled, &scale_rect);
SDL_FreeSurface(src_clone);
src_clone = src_scaled;
src_scaled = NULL;
}
}
/* SDLgfx_rotateSurface is going to make decisions depending on the blend mode. */
SDL_SetSurfaceBlendMode(src_clone, blendmode);
if (!retval) {
SDLgfx_rotozoomSurfaceSizeTrig(tmp_rect.w, tmp_rect.h, angle, &dstwidth, &dstheight, &cangle, &sangle);
src_rotated = SDLgfx_rotateSurface(src_clone, angle, dstwidth/2, dstheight/2, (texture->scaleMode == SDL_ScaleModeNearest) ? 0 : 1, flip & SDL_FLIP_HORIZONTAL, flip & SDL_FLIP_VERTICAL, dstwidth, dstheight, cangle, sangle);
if (src_rotated == NULL) {
retval = -1;
}
if (!retval && mask != NULL) {
/* The mask needed for the NONE blend mode gets rotated with the same parameters. */
mask_rotated = SDLgfx_rotateSurface(mask, angle, dstwidth/2, dstheight/2, SDL_FALSE, 0, 0, dstwidth, dstheight, cangle, sangle);
if (mask_rotated == NULL) {
retval = -1;
}
}
if (!retval) {
/* Find out where the new origin is by rotating the four final_rect points around the center and then taking the extremes */
abscenterx = final_rect->x + (int)center->x;
abscentery = final_rect->y + (int)center->y;
/* Compensate the angle inversion to match the behaviour of the other backends */
sangle = -sangle;
/* Top Left */
px = final_rect->x - abscenterx;
py = final_rect->y - abscentery;
p1x = px * cangle - py * sangle + abscenterx;
p1y = px * sangle + py * cangle + abscentery;
/* Top Right */
px = final_rect->x + final_rect->w - abscenterx;
py = final_rect->y - abscentery;
p2x = px * cangle - py * sangle + abscenterx;
p2y = px * sangle + py * cangle + abscentery;
/* Bottom Left */
px = final_rect->x - abscenterx;
py = final_rect->y + final_rect->h - abscentery;
p3x = px * cangle - py * sangle + abscenterx;
p3y = px * sangle + py * cangle + abscentery;
/* Bottom Right */
px = final_rect->x + final_rect->w - abscenterx;
py = final_rect->y + final_rect->h - abscentery;
p4x = px * cangle - py * sangle + abscenterx;
p4y = px * sangle + py * cangle + abscentery;
tmp_rect.x = (int)MIN(MIN(p1x, p2x), MIN(p3x, p4x));
tmp_rect.y = (int)MIN(MIN(p1y, p2y), MIN(p3y, p4y));
tmp_rect.w = dstwidth;
tmp_rect.h = dstheight;
/* The NONE blend mode needs some special care with non-opaque surfaces.
* Other blend modes or opaque surfaces can be blitted directly.
*/
if (blendmode != SDL_BLENDMODE_NONE || isOpaque) {
if (applyModulation == SDL_FALSE) {
/* If the modulation wasn't already applied, make it happen now. */
SDL_SetSurfaceAlphaMod(src_rotated, alphaMod);
SDL_SetSurfaceColorMod(src_rotated, rMod, gMod, bMod);
}
retval = SDL_BlitSurface(src_rotated, NULL, surface, &tmp_rect);
} else {
/* The NONE blend mode requires three steps to get the pixels onto the destination surface.
* First, the area where the rotated pixels will be blitted to get set to zero.
* This is accomplished by simply blitting a mask with the NONE blend mode.
* The colorkey set by the rotate function will discard the correct pixels.
*/
SDL_Rect mask_rect = tmp_rect;
SDL_SetSurfaceBlendMode(mask_rotated, SDL_BLENDMODE_NONE);
retval = SDL_BlitSurface(mask_rotated, NULL, surface, &mask_rect);
if (!retval) {
/* The next step copies the alpha value. This is done with the BLEND blend mode and
* by modulating the source colors with 0. Since the destination is all zeros, this
* will effectively set the destination alpha to the source alpha.
*/
SDL_SetSurfaceColorMod(src_rotated, 0, 0, 0);
mask_rect = tmp_rect;
retval = SDL_BlitSurface(src_rotated, NULL, surface, &mask_rect);
if (!retval) {
/* The last step gets the color values in place. The ADD blend mode simply adds them to
* the destination (where the color values are all zero). However, because the ADD blend
* mode modulates the colors with the alpha channel, a surface without an alpha mask needs
* to be created. This makes all source pixels opaque and the colors get copied correctly.
*/
SDL_Surface *src_rotated_rgb;
src_rotated_rgb = SDL_CreateRGBSurfaceFrom(src_rotated->pixels, src_rotated->w, src_rotated->h,
src_rotated->format->BitsPerPixel, src_rotated->pitch,
src_rotated->format->Rmask, src_rotated->format->Gmask,
src_rotated->format->Bmask, 0);
if (src_rotated_rgb == NULL) {
retval = -1;
} else {
SDL_SetSurfaceBlendMode(src_rotated_rgb, SDL_BLENDMODE_ADD);
retval = SDL_BlitSurface(src_rotated_rgb, NULL, surface, &tmp_rect);
SDL_FreeSurface(src_rotated_rgb);
}
}
}
SDL_FreeSurface(mask_rotated);
}
if (src_rotated != NULL) {
SDL_FreeSurface(src_rotated);
}
}
}
if (SDL_MUSTLOCK(src)) {
SDL_UnlockSurface(src);
}
if (mask != NULL) {
SDL_FreeSurface(mask);
}
if (src_clone != NULL) {
SDL_FreeSurface(src_clone);
}
return retval;
}
static void
PrepTextureForCopy(const SDL_RenderCommand *cmd)
{
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const SDL_BlendMode blend = cmd->data.draw.blend;
SDL_Texture *texture = cmd->data.draw.texture;
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
const SDL_bool colormod = ((r & g & b) != 0xFF);
const SDL_bool alphamod = (a != 0xFF);
const SDL_bool blending = ((blend == SDL_BLENDMODE_ADD) || (blend == SDL_BLENDMODE_MOD));
if (colormod || alphamod || blending) {
SDL_SetSurfaceRLE(surface, 0);
}
/* !!! FIXME: we can probably avoid some of these calls. */
SDL_SetSurfaceColorMod(surface, r, g, b);
SDL_SetSurfaceAlphaMod(surface, a);
SDL_SetSurfaceBlendMode(surface, blend);
}
static void
SetDrawState(SDL_Surface *surface, SW_DrawStateCache *drawstate)
{
if (drawstate->surface_cliprect_dirty) {
const SDL_Rect *viewport = drawstate->viewport;
const SDL_Rect *cliprect = drawstate->cliprect;
SDL_assert(viewport != NULL); /* the higher level should have forced a SDL_RENDERCMD_SETVIEWPORT */
if (cliprect != NULL) {
SDL_Rect clip_rect;
clip_rect.x = cliprect->x + viewport->x;
clip_rect.y = cliprect->y + viewport->y;
clip_rect.w = cliprect->w;
clip_rect.h = cliprect->h;
SDL_IntersectRect(viewport, &clip_rect, &clip_rect);
SDL_SetClipRect(surface, &clip_rect);
} else {
SDL_SetClipRect(surface, drawstate->viewport);
}
drawstate->surface_cliprect_dirty = SDL_FALSE;
}
}
static int
SW_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize)
{
SDL_Surface *surface = SW_ActivateRenderer(renderer);
SW_DrawStateCache drawstate;
if (!surface) {
return -1;
}
drawstate.viewport = NULL;
drawstate.cliprect = NULL;
drawstate.surface_cliprect_dirty = SDL_TRUE;
while (cmd) {
switch (cmd->command) {
case SDL_RENDERCMD_SETDRAWCOLOR: {
break; /* Not used in this backend. */
}
case SDL_RENDERCMD_SETVIEWPORT: {
drawstate.viewport = &cmd->data.viewport.rect;
drawstate.surface_cliprect_dirty = SDL_TRUE;
break;
}
case SDL_RENDERCMD_SETCLIPRECT: {
drawstate.cliprect = cmd->data.cliprect.enabled ? &cmd->data.cliprect.rect : NULL;
drawstate.surface_cliprect_dirty = SDL_TRUE;
break;
}
case SDL_RENDERCMD_CLEAR: {
const Uint8 r = cmd->data.color.r;
const Uint8 g = cmd->data.color.g;
const Uint8 b = cmd->data.color.b;
const Uint8 a = cmd->data.color.a;
/* By definition the clear ignores the clip rect */
SDL_SetClipRect(surface, NULL);
SDL_FillRect(surface, NULL, SDL_MapRGBA(surface->format, r, g, b, a));
drawstate.surface_cliprect_dirty = SDL_TRUE;
break;
}
case SDL_RENDERCMD_DRAW_POINTS: {
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const int count = (int) cmd->data.draw.count;
const SDL_Point *verts = (SDL_Point *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_BlendMode blend = cmd->data.draw.blend;
SetDrawState(surface, &drawstate);
if (blend == SDL_BLENDMODE_NONE) {
SDL_DrawPoints(surface, verts, count, SDL_MapRGBA(surface->format, r, g, b, a));
} else {
SDL_BlendPoints(surface, verts, count, blend, r, g, b, a);
}
break;
}
case SDL_RENDERCMD_DRAW_LINES: {
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const int count = (int) cmd->data.draw.count;
const SDL_Point *verts = (SDL_Point *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_BlendMode blend = cmd->data.draw.blend;
SetDrawState(surface, &drawstate);
if (blend == SDL_BLENDMODE_NONE) {
SDL_DrawLines(surface, verts, count, SDL_MapRGBA(surface->format, r, g, b, a));
} else {
SDL_BlendLines(surface, verts, count, blend, r, g, b, a);
}
break;
}
case SDL_RENDERCMD_FILL_RECTS: {
const Uint8 r = cmd->data.draw.r;
const Uint8 g = cmd->data.draw.g;
const Uint8 b = cmd->data.draw.b;
const Uint8 a = cmd->data.draw.a;
const int count = (int) cmd->data.draw.count;
const SDL_Rect *verts = (SDL_Rect *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_BlendMode blend = cmd->data.draw.blend;
SetDrawState(surface, &drawstate);
if (blend == SDL_BLENDMODE_NONE) {
SDL_FillRects(surface, verts, count, SDL_MapRGBA(surface->format, r, g, b, a));
} else {
SDL_BlendFillRects(surface, verts, count, blend, r, g, b, a);
}
break;
}
case SDL_RENDERCMD_COPY: {
SDL_Rect *verts = (SDL_Rect *) (((Uint8 *) vertices) + cmd->data.draw.first);
const SDL_Rect *srcrect = verts;
SDL_Rect *dstrect = verts + 1;
SDL_Texture *texture = cmd->data.draw.texture;
SDL_Surface *src = (SDL_Surface *) texture->driverdata;
SetDrawState(surface, &drawstate);
PrepTextureForCopy(cmd);
if ( srcrect->w == dstrect->w && srcrect->h == dstrect->h ) {
SDL_BlitSurface(src, srcrect, surface, dstrect);
} else {
/* If scaling is ever done, permanently disable RLE (which doesn't support scaling)
* to avoid potentially frequent RLE encoding/decoding.
*/
SDL_SetSurfaceRLE(surface, 0);
SDL_BlitScaled(src, srcrect, surface, dstrect);
}
break;
}
case SDL_RENDERCMD_COPY_EX: {
const CopyExData *copydata = (CopyExData *) (((Uint8 *) vertices) + cmd->data.draw.first);
SetDrawState(surface, &drawstate);
PrepTextureForCopy(cmd);
SW_RenderCopyEx(renderer, surface, cmd->data.draw.texture, &copydata->srcrect,
&copydata->dstrect, copydata->angle, &copydata->center, copydata->flip);
break;
}
case SDL_RENDERCMD_NO_OP:
break;
}
cmd = cmd->next;
}
return 0;
}
static int
SW_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
Uint32 format, void * pixels, int pitch)
{
SDL_Surface *surface = SW_ActivateRenderer(renderer);
Uint32 src_format;
void *src_pixels;
if (!surface) {
return -1;
}
/* NOTE: The rect is already adjusted according to the viewport by
* SDL_RenderReadPixels.
*/
if (rect->x < 0 || rect->x+rect->w > surface->w ||
rect->y < 0 || rect->y+rect->h > surface->h) {
return SDL_SetError("Tried to read outside of surface bounds");
}
src_format = surface->format->format;
src_pixels = (void*)((Uint8 *) surface->pixels +
rect->y * surface->pitch +
rect->x * surface->format->BytesPerPixel);
return SDL_ConvertPixels(rect->w, rect->h,
src_format, src_pixels, surface->pitch,
format, pixels, pitch);
}
static void
SW_RenderPresent(SDL_Renderer * renderer)
{
SDL_Window *window = renderer->window;
if (window) {
SDL_UpdateWindowSurface(window);
}
}
static void
SW_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
SDL_FreeSurface(surface);
}
static void
SW_DestroyRenderer(SDL_Renderer * renderer)
{
SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
SDL_free(data);
SDL_free(renderer);
}
SDL_Renderer *
SW_CreateRendererForSurface(SDL_Surface * surface)
{
SDL_Renderer *renderer;
SW_RenderData *data;
if (!surface) {
SDL_SetError("Can't create renderer for NULL surface");
return NULL;
}
renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
if (!renderer) {
SDL_OutOfMemory();
return NULL;
}
data = (SW_RenderData *) SDL_calloc(1, sizeof(*data));
if (!data) {
SW_DestroyRenderer(renderer);
SDL_OutOfMemory();
return NULL;
}
data->surface = surface;
data->window = surface;
renderer->WindowEvent = SW_WindowEvent;
renderer->GetOutputSize = SW_GetOutputSize;
renderer->CreateTexture = SW_CreateTexture;
renderer->UpdateTexture = SW_UpdateTexture;
renderer->LockTexture = SW_LockTexture;
renderer->UnlockTexture = SW_UnlockTexture;
renderer->SetRenderTarget = SW_SetRenderTarget;
renderer->QueueSetViewport = SW_QueueSetViewport;
renderer->QueueSetDrawColor = SW_QueueSetViewport; /* SetViewport and SetDrawColor are (currently) no-ops. */
renderer->QueueDrawPoints = SW_QueueDrawPoints;
renderer->QueueDrawLines = SW_QueueDrawPoints; /* lines and points queue vertices the same way. */
renderer->QueueFillRects = SW_QueueFillRects;
renderer->QueueCopy = SW_QueueCopy;
renderer->QueueCopyEx = SW_QueueCopyEx;
renderer->RunCommandQueue = SW_RunCommandQueue;
renderer->RenderReadPixels = SW_RenderReadPixels;
renderer->RenderPresent = SW_RenderPresent;
renderer->DestroyTexture = SW_DestroyTexture;
renderer->DestroyRenderer = SW_DestroyRenderer;
renderer->info = SW_RenderDriver.info;
renderer->driverdata = data;
SW_ActivateRenderer(renderer);
return renderer;
}
static SDL_Renderer *
SW_CreateRenderer(SDL_Window * window, Uint32 flags)
{
SDL_Surface *surface;
surface = SDL_GetWindowSurface(window);
if (!surface) {
return NULL;
}
return SW_CreateRendererForSurface(surface);
}
SDL_RenderDriver SW_RenderDriver = {
SW_CreateRenderer,
{
"software",
SDL_RENDERER_SOFTWARE | SDL_RENDERER_TARGETTEXTURE,
8,
{
SDL_PIXELFORMAT_ARGB8888,
SDL_PIXELFORMAT_ABGR8888,
SDL_PIXELFORMAT_RGBA8888,
SDL_PIXELFORMAT_BGRA8888,
SDL_PIXELFORMAT_RGB888,
SDL_PIXELFORMAT_BGR888,
SDL_PIXELFORMAT_RGB565,
SDL_PIXELFORMAT_RGB555
},
0,
0}
};
#endif /* !SDL_RENDER_DISABLED */
/* vi: set ts=4 sw=4 expandtab: */
SDL_UnlockSurface
#define SDL_UnlockSurface
Definition: SDL_dynapi_overrides.h:449
SW_CreateRendererForSurface
SDL_Renderer * SW_CreateRendererForSurface(SDL_Surface *surface)
Definition: SDL_render_sw.c:802
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1572
SW_DestroyTexture
static void SW_DestroyTexture(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_render_sw.c:785
points
GLfixed GLfixed GLint GLint GLfixed points
Definition: SDL_opengl_glext.h:4558
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:203
SW_RenderCopyEx
static int SW_RenderCopyEx(SDL_Renderer *renderer, SDL_Surface *surface, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_Rect *final_rect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
Definition: SDL_render_sw.c:333
SDL_blendline.h
mask
GLenum GLint GLuint mask
Definition: SDL_opengl_glext.h:657
SDL_MapRGBA
#define SDL_MapRGBA
Definition: SDL_dynapi_overrides.h:287
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:70
PrepTextureForCopy
static void PrepTextureForCopy(const SDL_RenderCommand *cmd)
Definition: SDL_render_sw.c:560
SDL_Renderer::QueueCopyEx
int(* QueueCopyEx)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture, const SDL_Rect *srcquad, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
Definition: SDL_sysrender.h:140
SDL_BlendFillRects
int SDL_BlendFillRects(SDL_Surface *dst, const SDL_Rect *rects, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
Definition: SDL_blendfillrect.c:263
SW_CreateRenderer
static SDL_Renderer * SW_CreateRenderer(SDL_Window *window, Uint32 flags)
Definition: SDL_render_sw.c:855
SDL_PIXELFORMAT_RGB888
@ SDL_PIXELFORMAT_RGB888
Definition: SDL_pixels.h:236
SDL_BLENDMODE_ADD
@ SDL_BLENDMODE_ADD
Definition: SDL_blendmode.h:47
SDL_AllocateRenderVertices
void * SDL_AllocateRenderVertices(SDL_Renderer *renderer, const size_t numbytes, const size_t alignment, size_t *offset)
Definition: SDL_render.c:284
SDL_RenderCommand::cliprect
struct SDL_RenderCommand::@30::@32 cliprect
SDL_Renderer::RunCommandQueue
int(* RunCommandQueue)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize)
Definition: SDL_sysrender.h:143
SDL_FPoint::x
float x
Definition: SDL_rect.h:62
SDL_FillRects
#define SDL_FillRects
Definition: SDL_dynapi_overrides.h:467
SDL_FRect::h
float h
Definition: SDL_rect.h:92
NULL
#define NULL
Definition: begin_code.h:167
SDL_ScaleModeNearest
@ SDL_ScaleModeNearest
Definition: SDL_sysrender.h:37
surface
EGLSurface surface
Definition: eglext.h:248
b
GLboolean GLboolean GLboolean b
Definition: SDL_opengl_glext.h:1109
SDL_Renderer::SetRenderTarget
int(* SetRenderTarget)(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_sysrender.h:155
g
GLboolean GLboolean g
Definition: SDL_opengl_glext.h:1109
SDL_PIXELLAYOUT
#define SDL_PIXELLAYOUT(X)
Definition: SDL_pixels.h:126
SW_QueueDrawPoints
static int SW_QueueDrawPoints(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
Definition: SDL_render_sw.c:202
SDL_render_sw_c.h
count
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
SDL_PACKEDLAYOUT_8888
@ SDL_PACKEDLAYOUT_8888
Definition: SDL_pixels.h:112
SDL_RenderCommand::next
struct SDL_RenderCommand * next
Definition: SDL_sysrender.h:110
SDL_PIXELFORMAT_BGR888
@ SDL_PIXELFORMAT_BGR888
Definition: SDL_pixels.h:242
CopyExData::dstrect
SDL_Rect dstrect
Definition: SDL_render_sw.c:295
SW_DrawStateCache::cliprect
const SDL_Rect * cliprect
Definition: SDL_render_sw.c:43
r
GLdouble GLdouble GLdouble r
Definition: SDL_opengl.h:2079
SW_RenderDriver
SDL_RenderDriver SW_RenderDriver
Definition: SDL_render_sw.c:866
viewport
SDL_Rect viewport
Definition: testviewport.c:28
SW_QueueCopy
static int SW_QueueCopy(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect)
Definition: SDL_render_sw.c:265
SDL_MUSTLOCK
#define SDL_MUSTLOCK(S)
Definition: SDL_surface.h:62
SDL_IntersectRect
#define SDL_IntersectRect
Definition: SDL_dynapi_overrides.h:294
SDL_RenderDriver
Definition: SDL_sysrender.h:236
SDL_FRect::x
float x
Definition: SDL_rect.h:89
SDL_Renderer::WindowEvent
void(* WindowEvent)(SDL_Renderer *renderer, const SDL_WindowEvent *event)
Definition: SDL_sysrender.h:126
SDL_PIXELFORMAT_RGB565
@ SDL_PIXELFORMAT_RGB565
Definition: SDL_pixels.h:224
SDL_FPoint::y
float y
Definition: SDL_rect.h:63
a
GLboolean GLboolean GLboolean GLboolean a
Definition: SDL_opengl_glext.h:1109
SDL_BlendLines
int SDL_BlendLines(SDL_Surface *dst, const SDL_Point *points, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
Definition: SDL_blendline.c:733
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1946
SW_DrawStateCache
Definition: SDL_render_sw.c:40
SDL_RendererFlip
SDL_RendererFlip
Flip constants for SDL_RenderCopyEx.
Definition: SDL_render.h:111
length
GLuint GLsizei GLsizei * length
Definition: SDL_opengl_glext.h:669
SDL_GetSurfaceBlendMode
#define SDL_GetSurfaceBlendMode
Definition: SDL_dynapi_overrides.h:460
SDL_Rect::x
int x
Definition: SDL_rect.h:79
SDL_RENDERCMD_COPY
@ SDL_RENDERCMD_COPY
Definition: SDL_sysrender.h:82
SW_RenderReadPixels
static int SW_RenderReadPixels(SDL_Renderer *renderer, const SDL_Rect *rect, Uint32 format, void *pixels, int pitch)
Definition: SDL_render_sw.c:744
SDL_RENDERCMD_SETCLIPRECT
@ SDL_RENDERCMD_SETCLIPRECT
Definition: SDL_sysrender.h:76
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_Rect::w
int w
Definition: SDL_rect.h:80
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
row
GLenum GLenum void * row
Definition: SDL_opengl_glext.h:3138
SDL_UpdateWindowSurface
#define SDL_UpdateWindowSurface
Definition: SDL_dynapi_overrides.h:541
SDL_BlendPoints
int SDL_BlendPoints(SDL_Surface *dst, const SDL_Point *points, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
Definition: SDL_blendpoint.c:257
dst
GLenum GLenum dst
Definition: SDL_opengl_glext.h:1737
SDL_GetWindowSize
#define SDL_GetWindowSize
Definition: SDL_dynapi_overrides.h:527
SDL_Surface::pitch
int pitch
Definition: SDL_surface.h:75
SDL_RENDERER_SOFTWARE
@ SDL_RENDERER_SOFTWARE
Definition: SDL_render.h:66
SDL_Renderer::viewport
SDL_Rect viewport
Definition: SDL_sysrender.h:186
SDL_CreateRGBSurfaceFrom
#define SDL_CreateRGBSurfaceFrom
Definition: SDL_dynapi_overrides.h:445
SDL_BLENDMODE_MOD
@ SDL_BLENDMODE_MOD
Definition: SDL_blendmode.h:50
SW_QueueFillRects
static int SW_QueueFillRects(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FRect *rects, int count)
Definition: SDL_render_sw.c:231
SDL_BLENDMODE_NONE
@ SDL_BLENDMODE_NONE
Definition: SDL_blendmode.h:42
SDL_memcpy
#define SDL_memcpy
Definition: SDL_dynapi_overrides.h:387
event
struct _cl_event * event
Definition: SDL_opengl_glext.h:2649
SDL_Renderer
Definition: SDL_sysrender.h:122
SDL_FALSE
@ SDL_FALSE
Definition: SDL_stdinc.h:163
SDL_Renderer::QueueSetDrawColor
int(* QueueSetDrawColor)(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
Definition: SDL_sysrender.h:131
SDL_FPoint
The structure that defines a point (floating point)
Definition: SDL_rect.h:60
SDL_Renderer::driverdata
void * driverdata
Definition: SDL_sysrender.h:232
SDL_FRect::y
float y
Definition: SDL_rect.h:90
SDL_DrawPoints
int SDL_DrawPoints(SDL_Surface *dst, const SDL_Point *points, int count, Uint32 color)
Definition: SDL_drawpoint.c:65
SDL_FRect::w
float w
Definition: SDL_rect.h:91
retval
SDL_bool retval
Definition: testgamecontroller.c:65
SDL_FLIP_HORIZONTAL
@ SDL_FLIP_HORIZONTAL
Definition: SDL_render.h:114
x
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
CopyExData::angle
double angle
Definition: SDL_render_sw.c:296
SDL_Rect::y
int y
Definition: SDL_rect.h:79
SDL_SetSurfaceColorMod
#define SDL_SetSurfaceColorMod
Definition: SDL_dynapi_overrides.h:455
SDL_Rect::h
int h
Definition: SDL_rect.h:80
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
SDL_TEXTUREACCESS_STATIC
@ SDL_TEXTUREACCESS_STATIC
Definition: SDL_render.h:93
SDL_BlitSurface
#define SDL_BlitSurface
Definition: SDL_surface.h:484
SW_DrawStateCache::viewport
const SDL_Rect * viewport
Definition: SDL_render_sw.c:42
SDL_max
#define SDL_max(x, y)
Definition: SDL_stdinc.h:407
SW_SetRenderTarget
static int SW_SetRenderTarget(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_render_sw.c:183
SDL_draw.h
SDL_blendpoint.h
SDL_RENDERCMD_SETVIEWPORT
@ SDL_RENDERCMD_SETVIEWPORT
Definition: SDL_sysrender.h:75
SDL_Renderer::QueueDrawLines
int(* QueueDrawLines)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
Definition: SDL_sysrender.h:134
SDL_RenderCommand::color
struct SDL_RenderCommand::@30::@34 color
SW_DrawStateCache::surface_cliprect_dirty
SDL_bool surface_cliprect_dirty
Definition: SDL_render_sw.c:44
SDL_RENDERCMD_DRAW_POINTS
@ SDL_RENDERCMD_DRAW_POINTS
Definition: SDL_sysrender.h:79
rect
SDL_Rect rect
Definition: testrelative.c:27
SDL_FreeSurface
#define SDL_FreeSurface
Definition: SDL_dynapi_overrides.h:446
SW_GetOutputSize
static int SW_GetOutputSize(SDL_Renderer *renderer, int *w, int *h)
Definition: SDL_render_sw.c:83
SDL_rotate.h
SDL_PixelFormatEnumToMasks
#define SDL_PixelFormatEnumToMasks
Definition: SDL_dynapi_overrides.h:278
SDL_assert.h
CopyExData::flip
SDL_RendererFlip flip
Definition: SDL_render_sw.c:298
SetDrawState
static void SetDrawState(SDL_Surface *surface, SW_DrawStateCache *drawstate)
Definition: SDL_render_sw.c:584
SW_RenderData
Definition: SDL_render_sw.c:47
SDL_WINDOWEVENT_SIZE_CHANGED
@ SDL_WINDOWEVENT_SIZE_CHANGED
Definition: SDL_video.h:156
SDL_SetSurfaceRLE
#define SDL_SetSurfaceRLE
Definition: SDL_dynapi_overrides.h:452
SDL_RenderCommand::command
SDL_RenderCommandType command
Definition: SDL_sysrender.h:88
SDL_RENDERCMD_NO_OP
@ SDL_RENDERCMD_NO_OP
Definition: SDL_sysrender.h:74
SDL_Renderer::QueueSetViewport
int(* QueueSetViewport)(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
Definition: SDL_sysrender.h:130
SDL_PIXELFORMAT_ARGB8888
@ SDL_PIXELFORMAT_ARGB8888
Definition: SDL_pixels.h:248
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:169
SDL_DrawLines
int SDL_DrawLines(SDL_Surface *dst, const SDL_Point *points, int count, Uint32 color)
Definition: SDL_drawline.c:166
SW_UpdateTexture
static int SW_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, const void *pixels, int pitch)
Definition: SDL_render_sw.c:139
SDL_RENDERCMD_DRAW_LINES
@ SDL_RENDERCMD_DRAW_LINES
Definition: SDL_sysrender.h:80
pixels
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
CopyExData::srcrect
SDL_Rect srcrect
Definition: SDL_render_sw.c:294
SDL_GetWindowSurface
#define SDL_GetWindowSurface
Definition: SDL_dynapi_overrides.h:540
SDL_Renderer::GetOutputSize
int(* GetOutputSize)(SDL_Renderer *renderer, int *w, int *h)
Definition: SDL_sysrender.h:127
CopyExData::center
SDL_FPoint center
Definition: SDL_render_sw.c:297
SDL_RenderCommand::data
union SDL_RenderCommand::@30 data
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
SDL_Renderer::CreateTexture
int(* CreateTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_sysrender.h:129
y
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1574
SDL_drawline.h
SDL_RENDERCMD_FILL_RECTS
@ SDL_RENDERCMD_FILL_RECTS
Definition: SDL_sysrender.h:81
SDL_LockSurface
#define SDL_LockSurface
Definition: SDL_dynapi_overrides.h:448
SDL_CreateRGBSurface
#define SDL_CreateRGBSurface
Definition: SDL_dynapi_overrides.h:444
SDL_Renderer::DestroyRenderer
void(* DestroyRenderer)(SDL_Renderer *renderer)
Definition: SDL_sysrender.h:161
SDL_Renderer::LockTexture
int(* LockTexture)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, void **pixels, int *pitch)
Definition: SDL_sysrender.h:152
SW_QueueCopyEx
static int SW_QueueCopyEx(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
Definition: SDL_render_sw.c:302
SDL_GetSurfaceAlphaMod
#define SDL_GetSurfaceAlphaMod
Definition: SDL_dynapi_overrides.h:458
SW_RenderData::surface
SDL_Surface * surface
Definition: SDL_render_sw.c:49
SDL_calloc
#define SDL_calloc
Definition: SDL_dynapi_overrides.h:375
SDL_PIXELFORMAT_RGB555
@ SDL_PIXELFORMAT_RGB555
Definition: SDL_pixels.h:194
SW_DestroyRenderer
static void SW_DestroyRenderer(SDL_Renderer *renderer)
Definition: SDL_render_sw.c:793
SDL_Renderer::RenderReadPixels
int(* RenderReadPixels)(SDL_Renderer *renderer, const SDL_Rect *rect, Uint32 format, void *pixels, int pitch)
Definition: SDL_sysrender.h:156
SW_RenderData::window
SDL_Surface * window
Definition: SDL_render_sw.c:50
SDL_RENDERCMD_COPY_EX
@ SDL_RENDERCMD_COPY_EX
Definition: SDL_sysrender.h:83
SDL_blendfillrect.h
SDL_RenderCommand
Definition: SDL_sysrender.h:86
src
GLenum src
Definition: SDL_opengl_glext.h:1737
renderer
static SDL_Renderer * renderer
Definition: testaudiocapture.c:21
CopyExData
Definition: SDL_render_sw.c:292
SDL_TRUE
@ SDL_TRUE
Definition: SDL_stdinc.h:164
SDL_Point
The structure that defines a point (integer)
Definition: SDL_rect.h:48
SDL_Renderer::info
SDL_RendererInfo info
Definition: SDL_sysrender.h:170
SDL_RENDERER_TARGETTEXTURE
@ SDL_RENDERER_TARGETTEXTURE
Definition: SDL_render.h:71
SDL_PIXELFORMAT_RGBA8888
@ SDL_PIXELFORMAT_RGBA8888
Definition: SDL_pixels.h:251
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_Renderer::RenderPresent
void(* RenderPresent)(SDL_Renderer *renderer)
Definition: SDL_sysrender.h:158
SW_ActivateRenderer
static SDL_Surface * SW_ActivateRenderer(SDL_Renderer *renderer)
Definition: SDL_render_sw.c:55
SDL_Rect
A rectangle, with the origin at the upper left (integer).
Definition: SDL_rect.h:77
SDL_RenderCommand::viewport
struct SDL_RenderCommand::@30::@31 viewport
SDL_drawpoint.h
SDL_Texture
Definition: SDL_sysrender.h:43
SDL_Renderer::QueueFillRects
int(* QueueFillRects)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FRect *rects, int count)
Definition: SDL_sysrender.h:136
SDL_Renderer::UpdateTexture
int(* UpdateTexture)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, const void *pixels, int pitch)
Definition: SDL_sysrender.h:144
SDL_hints.h
SW_RunCommandQueue
static int SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize)
Definition: SDL_render_sw.c:607
SW_QueueSetViewport
static int SW_QueueSetViewport(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
Definition: SDL_render_sw.c:196
SDL_WindowEvent
Window state change event data (event.window.*)
Definition: SDL_events.h:195
SDL_PIXELFORMAT_BGRA8888
@ SDL_PIXELFORMAT_BGRA8888
Definition: SDL_pixels.h:257
SDL_FRect
A rectangle, with the origin at the upper left (floating point).
Definition: SDL_rect.h:87
SDL_SetSurfaceBlendMode
#define SDL_SetSurfaceBlendMode
Definition: SDL_dynapi_overrides.h:459
SDL_GetSurfaceColorMod
#define SDL_GetSurfaceColorMod
Definition: SDL_dynapi_overrides.h:456
SDL_RenderCommand::draw
struct SDL_RenderCommand::@30::@33 draw
SDL_RenderDriver::info
SDL_RendererInfo info
Definition: SDL_sysrender.h:241
SDL_ConvertPixels
#define SDL_ConvertPixels
Definition: SDL_dynapi_overrides.h:465
SW_LockTexture
static int SW_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, void **pixels, int *pitch)
Definition: SDL_render_sw.c:165
angle
GLfloat angle
Definition: SDL_opengl_glext.h:6097
SDL_FLIP_VERTICAL
@ SDL_FLIP_VERTICAL
Definition: SDL_render.h:115
SDLgfx_rotozoomSurfaceSizeTrig
void SDLgfx_rotozoomSurfaceSizeTrig(int width, int height, double angle, int *dstwidth, int *dstheight, double *cangle, double *sangle)
Definition: SDL_rotate.c:106
SDL_FillRect
#define SDL_FillRect
Definition: SDL_dynapi_overrides.h:466
SDLgfx_rotateSurface
SDL_Surface * SDLgfx_rotateSurface(SDL_Surface *src, double angle, int centerx, int centery, int smooth, int flipx, int flipy, int dstwidth, int dstheight, double cangle, double sangle)
Definition: SDL_rotate.c:415
SDL_Renderer::QueueDrawPoints
int(* QueueDrawPoints)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
Definition: SDL_sysrender.h:132
flags
GLbitfield flags
Definition: SDL_opengl_glext.h:1480
SDL_RENDERCMD_SETDRAWCOLOR
@ SDL_RENDERCMD_SETDRAWCOLOR
Definition: SDL_sysrender.h:77
SW_WindowEvent
static void SW_WindowEvent(SDL_Renderer *renderer, const SDL_WindowEvent *event)
Definition: SDL_render_sw.c:72
SDL_Renderer::QueueCopy
int(* QueueCopy)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect)
Definition: SDL_sysrender.h:138
SDL_Renderer::window
SDL_Window * window
Definition: SDL_sysrender.h:173
SW_CreateTexture
static int SW_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_render_sw.c:107
texture
GLenum GLenum GLuint texture
Definition: SDL_opengl_glext.h:1178
SW_RenderPresent
static void SW_RenderPresent(SDL_Renderer *renderer)
Definition: SDL_render_sw.c:775
rects
EGLSurface EGLint * rects
Definition: eglext.h:282
MIN
#define MIN(a, b)
Definition: SDL_rotate.h:26
SDL_PIXELFORMAT_ABGR8888
@ SDL_PIXELFORMAT_ABGR8888
Definition: SDL_pixels.h:254
SDL_BlendMode
SDL_BlendMode
The blend mode used in SDL_RenderCopy() and drawing operations.
Definition: SDL_blendmode.h:40
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SW_UnlockTexture
static void SW_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_render_sw.c:178
SDL_RENDERCMD_CLEAR
@ SDL_RENDERCMD_CLEAR
Definition: SDL_sysrender.h:78
SDL_BlitScaled
#define SDL_BlitScaled
Definition: SDL_surface.h:513
SDL_SetClipRect
#define SDL_SetClipRect
Definition: SDL_dynapi_overrides.h:461
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:161
SDL_Renderer::UnlockTexture
void(* UnlockTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_sysrender.h:154
SDL_SetSurfaceAlphaMod
#define SDL_SetSurfaceAlphaMod
Definition: SDL_dynapi_overrides.h:457
SDL_Renderer::DestroyTexture
void(* DestroyTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
Definition: SDL_sysrender.h:159
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:731
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179