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Renderer colors now have floating point precision

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This commit is contained in:
Sam Lantinga 2024-01-29 13:28:33 -08:00
parent da8fc70a83
commit 554f0625d3
21 changed files with 603 additions and 347 deletions
src/render/direct3d
SDL_render_d3d.c

15
src/render/direct3d/SDL_render_d3d.c
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@ -804,7 +804,10 @@ static int D3D_QueueSetViewport(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
static int D3D_QueueDrawPoints(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
{
const DWORD color = D3DCOLOR_ARGB(cmd->data.draw.a, cmd->data.draw.r, cmd->data.draw.g, cmd->data.draw.b);
const DWORD color = D3DCOLOR_COLORVALUE(cmd->data.draw.color.r,
cmd->data.draw.color.g,
cmd->data.draw.color.b,
cmd->data.draw.color.a);
const size_t vertslen = count * sizeof(Vertex);
Vertex *verts = (Vertex *)SDL_AllocateRenderVertices(renderer, vertslen, 0, &cmd->data.draw.first);
int i;
@ -826,7 +829,7 @@ static int D3D_QueueDrawPoints(SDL_Renderer *renderer, SDL_RenderCommand *cmd, c
}
static int D3D_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture,
const float *xy, int xy_stride, const SDL_Color *color, int color_stride, const float *uv, int uv_stride,
const float *xy, int xy_stride, const SDL_FColor *color, int color_stride, const float *uv, int uv_stride,
int num_vertices, const void *indices, int num_indices, int size_indices,
float scale_x, float scale_y)
{
@ -844,7 +847,7 @@ static int D3D_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL
for (i = 0; i < count; i++) {
int j;
float *xy_;
SDL_Color col_;
SDL_FColor *col_;
if (size_indices == 4) {
j = ((const Uint32 *)indices)[i];
} else if (size_indices == 2) {
@ -856,12 +859,12 @@ static int D3D_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL
}
xy_ = (float *)((char *)xy + j * xy_stride);
col_ = *(SDL_Color *)((char *)color + j * color_stride);
col_ = (SDL_FColor *)((char *)color + j * color_stride);
verts->x = xy_[0] * scale_x - 0.5f;
verts->y = xy_[1] * scale_y - 0.5f;
verts->z = 0.0f;
verts->color = D3DCOLOR_ARGB(col_.a, col_.r, col_.g, col_.b);
verts->color = D3DCOLOR_COLORVALUE(col_->r, col_->g, col_->b, col_->a);
if (texture) {
float *uv_ = (float *)((char *)uv + j * uv_stride);
@ -1191,7 +1194,7 @@ static int D3D_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v
case SDL_RENDERCMD_CLEAR:
{
const DWORD color = D3DCOLOR_ARGB(cmd->data.color.a, cmd->data.color.r, cmd->data.color.g, cmd->data.color.b);
const DWORD color = D3DCOLOR_COLORVALUE(cmd->data.color.color.r, cmd->data.color.color.g, cmd->data.color.color.b, cmd->data.color.color.a);
const SDL_Rect *viewport = &data->drawstate.viewport;
const int backw = istarget ? renderer->target->w : data->pparams.BackBufferWidth;
const int backh = istarget ? renderer->target->h : data->pparams.BackBufferHeight;