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OpenGLES2: LINES and POINTS successive commands are combined into a single draw call 

(using the same case for DRAW_GEOMETRY)
This commit is contained in:
Sylvain 2021-09-24 09:42:04 +02:00 committed by Ryan C. Gordon
parent f0cdc1d0f6
commit 99a346439c
1 changed files with 9 additions and 17 deletions
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26
src/render/opengles2/SDL_render_gles2.c
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@ -1118,22 +1118,6 @@ GLES2_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *ver
break;
}
case SDL_RENDERCMD_DRAW_POINTS: {
if (SetDrawState(data, cmd, GLES2_IMAGESOURCE_SOLID) == 0) {
data->glDrawArrays(GL_POINTS, 0, (GLsizei) cmd->data.draw.count);
}
break;
}
case SDL_RENDERCMD_DRAW_LINES: {
const size_t count = cmd->data.draw.count;
SDL_assert(count >= 2);
if (SetDrawState(data, cmd, GLES2_IMAGESOURCE_SOLID) == 0) {
data->glDrawArrays(GL_LINE_STRIP, 0, (GLsizei) count);
}
break;
}
case SDL_RENDERCMD_FILL_RECTS: /* unused */
break;
@ -1143,6 +1127,8 @@ GLES2_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *ver
case SDL_RENDERCMD_COPY_EX: /* unused */
break;
case SDL_RENDERCMD_DRAW_POINTS:
case SDL_RENDERCMD_DRAW_LINES:
case SDL_RENDERCMD_GEOMETRY: {
/* as long as we have the same copy command in a row, with the
same texture, we can combine them all into a single draw call. */
@ -1176,7 +1162,13 @@ GLES2_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *ver
}
if (ret == 0) {
data->glDrawArrays(GL_TRIANGLES, 0, (GLsizei) count);
int op = GL_TRIANGLES; /* SDL_RENDERCMD_GEOMETRY */
if (thiscmdtype == SDL_RENDERCMD_DRAW_POINTS) {
op = GL_POINTS;
} else if (thiscmdtype == SDL_RENDERCMD_DRAW_LINES) {
op = GL_LINE_STRIP;
}
data->glDrawArrays(op, 0, (GLsizei) count);
}
cmd = finalcmd; /* skip any copy commands we just combined in here. */