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Don't flush in RenderDraw*WithRects()

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This allows these functions to be reused in the future for other primitives
This commit is contained in:
Sam Lantinga
2022-01-08 09:23:58 -08:00
parent 18e4d9fed1
commit 2026a78dc2
1 changed files with 38 additions and 103 deletions
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141
src/render/SDL_render.c
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@@ -2654,7 +2654,7 @@ RenderDrawPointsWithRects(SDL_Renderer * renderer,
SDL_small_free(frects, isstack);
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
return retval;
}
int
@@ -2683,22 +2683,21 @@ SDL_RenderDrawPoints(SDL_Renderer * renderer,
#endif
if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
return RenderDrawPointsWithRects(renderer, points, count);
retval = RenderDrawPointsWithRects(renderer, points, count);
} else {
fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
if (!fpoints) {
return SDL_OutOfMemory();
}
for (i = 0; i < count; ++i) {
fpoints[i].x = points[i].x * renderer->scale.x;
fpoints[i].y = points[i].y * renderer->scale.y;
}
retval = QueueCmdDrawPoints(renderer, fpoints, count);
SDL_small_free(fpoints, isstack);
}
fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
if (!fpoints) {
return SDL_OutOfMemory();
}
for (i = 0; i < count; ++i) {
fpoints[i].x = points[i].x * renderer->scale.x;
fpoints[i].y = points[i].y * renderer->scale.y;
}
retval = QueueCmdDrawPoints(renderer, fpoints, count);
SDL_small_free(fpoints, isstack);
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
}
@@ -2728,7 +2727,7 @@ RenderDrawPointsWithRectsF(SDL_Renderer * renderer,
SDL_small_free(frects, isstack);
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
return retval;
}
int
@@ -2757,22 +2756,21 @@ SDL_RenderDrawPointsF(SDL_Renderer * renderer,
#endif
if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
return RenderDrawPointsWithRectsF(renderer, points, count);
retval = RenderDrawPointsWithRectsF(renderer, points, count);
} else {
fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
if (!fpoints) {
return SDL_OutOfMemory();
}
for (i = 0; i < count; ++i) {
fpoints[i].x = points[i].x * renderer->scale.x;
fpoints[i].y = points[i].y * renderer->scale.y;
}
retval = QueueCmdDrawPoints(renderer, fpoints, count);
SDL_small_free(fpoints, isstack);
}
fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
if (!fpoints) {
return SDL_OutOfMemory();
}
for (i = 0; i < count; ++i) {
fpoints[i].x = points[i].x * renderer->scale.x;
fpoints[i].y = points[i].y * renderer->scale.y;
}
retval = QueueCmdDrawPoints(renderer, fpoints, count);
SDL_small_free(fpoints, isstack);
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
}
@@ -2798,63 +2796,6 @@ SDL_RenderDrawLineF(SDL_Renderer * renderer, float x1, float y1, float x2, float
return SDL_RenderDrawLinesF(renderer, points, 2);
}
static int
RenderDrawLinesWithRects(SDL_Renderer * renderer,
const SDL_Point * points, const int count)
{
SDL_FRect *frect;
SDL_FRect *frects;
SDL_FPoint fpoints[2];
int i, nrects = 0;
int retval = 0;
SDL_bool isstack;
frects = SDL_small_alloc(SDL_FRect, count-1, &isstack);
if (!frects) {
return SDL_OutOfMemory();
}
for (i = 0; i < count-1; ++i) {
if (points[i].x == points[i+1].x) {
const int minY = SDL_min(points[i].y, points[i+1].y);
const int maxY = SDL_max(points[i].y, points[i+1].y);
frect = &frects[nrects++];
frect->x = points[i].x * renderer->scale.x;
frect->y = minY * renderer->scale.y;
frect->w = renderer->scale.x;
frect->h = (maxY - minY + 1) * renderer->scale.y;
} else if (points[i].y == points[i+1].y) {
const int minX = SDL_min(points[i].x, points[i+1].x);
const int maxX = SDL_max(points[i].x, points[i+1].x);
frect = &frects[nrects++];
frect->x = minX * renderer->scale.x;
frect->y = points[i].y * renderer->scale.y;
frect->w = (maxX - minX + 1) * renderer->scale.x;
frect->h = renderer->scale.y;
} else {
/* FIXME: We can't use a rect for this line... */
fpoints[0].x = points[i].x * renderer->scale.x;
fpoints[0].y = points[i].y * renderer->scale.y;
fpoints[1].x = points[i+1].x * renderer->scale.x;
fpoints[1].y = points[i+1].y * renderer->scale.y;
retval += QueueCmdDrawLines(renderer, fpoints, 2);
}
}
if (nrects) {
retval += QueueCmdFillRects(renderer, frects, nrects);
}
SDL_small_free(frects, isstack);
if (retval < 0) {
retval = -1;
}
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
}
static int
RenderDrawLinesWithRectsF(SDL_Renderer * renderer,
const SDL_FPoint * points, const int count)
@@ -2873,8 +2814,8 @@ RenderDrawLinesWithRectsF(SDL_Renderer * renderer,
for (i = 0; i < count-1; ++i) {
if (points[i].x == points[i+1].x) {
const int minY = (int)SDL_min(points[i].y, points[i+1].y);
const int maxY = (int)SDL_max(points[i].y, points[i+1].y);
const float minY = SDL_min(points[i].y, points[i+1].y);
const float maxY = SDL_max(points[i].y, points[i+1].y);
frect = &frects[nrects++];
frect->x = points[i].x * renderer->scale.x;
@@ -2882,8 +2823,8 @@ RenderDrawLinesWithRectsF(SDL_Renderer * renderer,
frect->w = renderer->scale.x;
frect->h = (maxY - minY + 1) * renderer->scale.y;
} else if (points[i].y == points[i+1].y) {
const int minX = (int)SDL_min(points[i].x, points[i+1].x);
const int maxX = (int)SDL_max(points[i].x, points[i+1].x);
const float minX = SDL_min(points[i].x, points[i+1].x);
const float maxX = SDL_max(points[i].x, points[i+1].x);
frect = &frects[nrects++];
frect->x = minX * renderer->scale.x;
@@ -2909,7 +2850,7 @@ RenderDrawLinesWithRectsF(SDL_Renderer * renderer,
if (retval < 0) {
retval = -1;
}
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
return retval;
}
int
@@ -2937,10 +2878,6 @@ SDL_RenderDrawLines(SDL_Renderer * renderer,
}
#endif
if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
return RenderDrawLinesWithRects(renderer, points, count);
}
fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
if (!fpoints) {
return SDL_OutOfMemory();
@@ -2981,13 +2918,11 @@ SDL_RenderDrawLinesF(SDL_Renderer * renderer,
}
#endif
if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
return RenderDrawLinesWithRectsF(renderer, points, count);
}
use_rendergeometry = (renderer->QueueDrawLines == NULL);
if (use_rendergeometry) {
if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
retval = RenderDrawLinesWithRectsF(renderer, points, count);
} else if (use_rendergeometry) {
SDL_bool isstack1;
SDL_bool isstack2;
float *xy = SDL_small_alloc(float, 4 * 2 * count, &isstack1);