encounter
/
SDL
mirror of https://github.com/encounter/SDL.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Implement RenderLines

This commit is contained in:
Daniel Santos 2022-07-08 15:47:33 -03:00 committed by Sam Lantinga
parent 0f0e5b44dc
commit 5bb965be3d
1 changed files with 57 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
src/render/ps2/SDL_render_ps2.c
View File

@ -209,6 +209,30 @@ PS2_QueueSetViewport(SDL_Renderer * renderer, SDL_RenderCommand *cmd)
return 0; /* nothing to do in this backend. */
}
static int
PS2_QueueDrawLines(SDL_Renderer * renderer, SDL_RenderCommand *cmd, const SDL_FPoint * points, int count)
{
PS2_RenderData *data = (PS2_RenderData *) renderer->driverdata;
uint64_t color = data->drawColor;
color_vertex *vertex = (color_vertex *) SDL_AllocateRenderVertices(renderer, (count-1) * sizeof (color_vertex) * 2, 4, &cmd->data.draw.first);
cmd->data.draw.first = (size_t)vertex;
cmd->data.draw.count = (count-1) * 2;
for (int i = 0; i < count-1; i++)
{
vertex[i*2].x = points[i].x;
vertex[i*2].y = points[i].y;
vertex[i*2].color = color;
vertex[i*2+1].x = points[i+1].x;
vertex[i*2+1].y = points[i+1].y;
vertex[i*2+1].color = color;
}
return 0;
}
static int
PS2_QueueDrawPoints(SDL_Renderer * renderer, SDL_RenderCommand *cmd, const SDL_FPoint * points, int count)
{
@ -440,6 +464,34 @@ PS2_RenderGeometry(SDL_Renderer *renderer, void *vertices, SDL_RenderCommand *cm
return 0;
}
int
PS2_RenderLines(SDL_Renderer *renderer, void *vertices, SDL_RenderCommand * cmd)
{
PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
float x1, y1, x2, y2;
uint64_t c1, c2;
int i;
const size_t count = cmd->data.draw.count;
const color_vertex *verts = (color_vertex *) (vertices + cmd->data.draw.first);
for (i = 0; i < count-1; i++, verts++) {
x1 = verts[i*2].x;
y1 = verts[i*2].y;
c1 = verts[i*2].color;
x2 = verts[i*2+1].x;
y2 = verts[i*2+1].y;
c2 = verts[i*2+1].color;
gsKit_prim_line_goraud(data->gsGlobal, x1, y1, x2, y2, 0, c1, c2);
}
/* We're done! */
return 0;
}
int
PS2_RenderPoints(SDL_Renderer *renderer, void *vertices, SDL_RenderCommand * cmd)
{
@ -483,6 +535,10 @@ PS2_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *verti
PS2_RenderPoints(renderer, vertices, cmd);
break;
}
case SDL_RENDERCMD_DRAW_LINES: {
PS2_RenderLines(renderer, vertices, cmd);
break;
}
case SDL_RENDERCMD_FILL_RECTS: /* unused */
break;
case SDL_RENDERCMD_COPY: /* unused */
@ -537,7 +593,6 @@ PS2_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
SDL_free(ps2_texture);
}
static void
PS2_DestroyRenderer(SDL_Renderer * renderer)
{
@ -645,7 +700,7 @@ PS2_CreateRenderer(SDL_Window * window, Uint32 flags)
renderer->QueueSetViewport = PS2_QueueSetViewport;
renderer->QueueSetDrawColor = PS2_QueueSetViewport; /* SetViewport and SetDrawColor are (currently) no-ops. */
renderer->QueueDrawPoints = PS2_QueueDrawPoints;
renderer->QueueDrawLines = PS2_QueueDrawPoints; /* lines and points queue vertices the same way. */
renderer->QueueDrawLines = PS2_QueueDrawLines; /* lines and points queue vertices the same way. */
renderer->QueueGeometry = PS2_QueueGeometry;
renderer->RunCommandQueue = PS2_RunCommandQueue;
renderer->RenderReadPixels = PS2_RenderReadPixels;