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Added SDL_RenderSetScale() and SDL_RenderGetScale()

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This commit is contained in:
Sam Lantinga 2012-10-01 20:59:33 -07:00
parent 0b35b7b0bf
commit f366b098d4
10 changed files with 603 additions and 353 deletions
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50
src/render/opengl/SDL_render_gl.c
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@ -58,16 +58,16 @@ static int GL_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture);
static int GL_UpdateViewport(SDL_Renderer * renderer);
static int GL_RenderClear(SDL_Renderer * renderer);
static int GL_RenderDrawPoints(SDL_Renderer * renderer,
const SDL_Point * points, int count);
const SDL_FPoint * points, int count);
static int GL_RenderDrawLines(SDL_Renderer * renderer,
const SDL_Point * points, int count);
const SDL_FPoint * points, int count);
static int GL_RenderFillRects(SDL_Renderer * renderer,
const SDL_Rect * rects, int count);
const SDL_FRect * rects, int count);
static int GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect);
const SDL_Rect * srcrect, const SDL_FRect * dstrect);
static int GL_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect,
const double angle, const SDL_Point *center, const SDL_RendererFlip flip);
const SDL_Rect * srcrect, const SDL_FRect * dstrect,
const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip);
static int GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
Uint32 pixel_format, void * pixels, int pitch);
static void GL_RenderPresent(SDL_Renderer * renderer);
@ -876,7 +876,7 @@ GL_RenderClear(SDL_Renderer * renderer)
}
static int
GL_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
GL_RenderDrawPoints(SDL_Renderer * renderer, const SDL_FPoint * points,
int count)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
@ -894,7 +894,7 @@ GL_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
}
static int
GL_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
GL_RenderDrawLines(SDL_Renderer * renderer, const SDL_FPoint * points,
int count)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
@ -959,7 +959,7 @@ GL_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
}
static int
GL_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects, int count)
GL_RenderFillRects(SDL_Renderer * renderer, const SDL_FRect * rects, int count)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
int i;
@ -967,9 +967,9 @@ GL_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects, int count)
GL_SetDrawingState(renderer);
for (i = 0; i < count; ++i) {
const SDL_Rect *rect = &rects[i];
const SDL_FRect *rect = &rects[i];
data->glRecti(rect->x, rect->y, rect->x + rect->w, rect->y + rect->h);
data->glRectf(rect->x, rect->y, rect->x + rect->w, rect->y + rect->h);
}
GL_CheckError("", renderer);
@ -978,11 +978,11 @@ GL_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect * rects, int count)
static int
GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
const SDL_Rect * srcrect, const SDL_FRect * dstrect)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata;
int minx, miny, maxx, maxy;
GLfloat minx, miny, maxx, maxy;
GLfloat minu, maxu, minv, maxv;
GL_ActivateRenderer(renderer);
@ -1029,13 +1029,13 @@ GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
data->glBegin(GL_TRIANGLE_STRIP);
data->glTexCoord2f(minu, minv);
data->glVertex2f((GLfloat) minx, (GLfloat) miny);
data->glVertex2f(minx, miny);
data->glTexCoord2f(maxu, minv);
data->glVertex2f((GLfloat) maxx, (GLfloat) miny);
data->glVertex2f(maxx, miny);
data->glTexCoord2f(minu, maxv);
data->glVertex2f((GLfloat) minx, (GLfloat) maxy);
data->glVertex2f(minx, maxy);
data->glTexCoord2f(maxu, maxv);
data->glVertex2f((GLfloat) maxx, (GLfloat) maxy);
data->glVertex2f(maxx, maxy);
data->glEnd();
data->glDisable(texturedata->type);
@ -1047,8 +1047,8 @@ GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
static int
GL_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect,
const double angle, const SDL_Point *center, const SDL_RendererFlip flip)
const SDL_Rect * srcrect, const SDL_FRect * dstrect,
const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata;
@ -1083,25 +1083,25 @@ GL_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture,
GL_SetShader(data, SHADER_RGB);
}
centerx = (GLfloat)center->x;
centery = (GLfloat)center->y;
centerx = center->x;
centery = center->y;
if (flip & SDL_FLIP_HORIZONTAL) {
minx = (GLfloat) dstrect->w - centerx;
minx = dstrect->w - centerx;
maxx = -centerx;
}
else {
minx = -centerx;
maxx = (GLfloat) dstrect->w - centerx;
maxx = dstrect->w - centerx;
}
if (flip & SDL_FLIP_VERTICAL) {
miny = (GLfloat) dstrect->h - centery;
miny = dstrect->h - centery;
maxy = -centery;
}
else {
miny = -centery;
maxy = (GLfloat) dstrect->h - centery;
maxy = dstrect->h - centery;
}
minu = (GLfloat) srcrect->x / texture->w;