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Simplified SDL_Surface

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SDL_Surface has been simplified and internal details are no longer in the public structure.

The `format` member of SDL_Surface is now an enumerated pixel format value. You can get the full details of the pixel format by calling `SDL_GetPixelFormatDetails(surface->format)`. You can get the palette associated with the surface by calling SDL_GetSurfacePalette(). You can get the clip rectangle by calling SDL_GetSurfaceClipRect().

SDL_PixelFormat has been renamed SDL_PixelFormatDetails and just describes the pixel format, it does not include a palette for indexed pixel types.

SDL_PixelFormatEnum has been renamed SDL_PixelFormat and is used instead of Uint32 for API functions that refer to pixel format by enumerated value.

SDL_MapRGB(), SDL_MapRGBA(), SDL_GetRGB(), and SDL_GetRGBA() take an optional palette parameter for indexed color lookups.
This commit is contained in:
Sam Lantinga
2024-07-08 14:59:18 -07:00
parent 40ed098ce8
commit 2ba76dbe80
123 changed files with 1865 additions and 1838 deletions
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20
src/render/software/SDL_blendline.c
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@@ -30,7 +30,7 @@ static void SDL_BlendLine_RGB2(SDL_Surface *dst, int x1, int y1, int x2, int y2,
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
SDL_bool draw_end)
{
const SDL_PixelFormat *fmt = dst->format;
const SDL_PixelFormatDetails *fmt = dst->internal->format;
unsigned r, g, b, a, inva;
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
@@ -343,7 +343,7 @@ static void SDL_BlendLine_RGB4(SDL_Surface *dst, int x1, int y1, int x2, int y2,
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
SDL_bool draw_end)
{
const SDL_PixelFormat *fmt = dst->format;
const SDL_PixelFormatDetails *fmt = dst->internal->format;
unsigned r, g, b, a, inva;
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
@@ -448,7 +448,7 @@ static void SDL_BlendLine_RGBA4(SDL_Surface *dst, int x1, int y1, int x2, int y2
SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
SDL_bool draw_end)
{
const SDL_PixelFormat *fmt = dst->format;
const SDL_PixelFormatDetails *fmt = dst->internal->format;
unsigned r, g, b, a, inva;
if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
@@ -763,7 +763,7 @@ typedef void (*BlendLineFunc)(SDL_Surface *dst,
Uint8 r, Uint8 g, Uint8 b, Uint8 a,
SDL_bool draw_end);
static BlendLineFunc SDL_CalculateBlendLineFunc(const SDL_PixelFormat *fmt)
static BlendLineFunc SDL_CalculateBlendLineFunc(const SDL_PixelFormatDetails *fmt)
{
switch (fmt->bytes_per_pixel) {
case 2:
@@ -798,18 +798,18 @@ int SDL_BlendLine(SDL_Surface *dst, int x1, int y1, int x2, int y2,
{
BlendLineFunc func;
if (!dst) {
if (!SDL_SurfaceValid(dst)) {
return SDL_InvalidParamError("SDL_BlendLine(): dst");
}
func = SDL_CalculateBlendLineFunc(dst->format);
func = SDL_CalculateBlendLineFunc(dst->internal->format);
if (!func) {
return SDL_SetError("SDL_BlendLine(): Unsupported surface format");
}
/* Perform clipping */
/* FIXME: We don't actually want to clip, as it may change line slope */
if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
if (!SDL_GetRectAndLineIntersection(&dst->internal->clip_rect, &x1, &y1, &x2, &y2)) {
return 0;
}
@@ -826,11 +826,11 @@ int SDL_BlendLines(SDL_Surface *dst, const SDL_Point *points, int count,
SDL_bool draw_end;
BlendLineFunc func;
if (!dst) {
if (!SDL_SurfaceValid(dst)) {
return SDL_SetError("SDL_BlendLines(): Passed NULL destination surface");
}
func = SDL_CalculateBlendLineFunc(dst->format);
func = SDL_CalculateBlendLineFunc(dst->internal->format);
if (!func) {
return SDL_SetError("SDL_BlendLines(): Unsupported surface format");
}
@@ -843,7 +843,7 @@ int SDL_BlendLines(SDL_Surface *dst, const SDL_Point *points, int count,
/* Perform clipping */
/* FIXME: We don't actually want to clip, as it may change line slope */
if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
if (!SDL_GetRectAndLineIntersection(&dst->internal->clip_rect, &x1, &y1, &x2, &y2)) {
continue;
}